I have a question. Are the supposed "Aliens" from Descent 2 really "Aliens", or is it all just a part of PTMC's scheming? Since it's revealed in Descent 3 that it's PTMC who masterminded the virus, are any aliens involved at all?

_________________"I can almost feel that mechanical nightmare behind me, rolling around in its final throes of death... Then the orbital sky lights up like a sun... I start to breathe again."